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Posted By

reelfernandes on 04/11/11


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ECMAScript 5 Getter/Setter

 / Published in: JavaScript
 
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  1. var myObject = {};
  2.  
  3. //wrapping Object.defineProperty in a function like this feels very hacky
  4. (function() {
  5. 	var myProp = 'myDefault';
  6. 	Object.defineProperty( myObject, 'myProp', 
  7. 	{
  8. 		enumerable:		false,
  9. 		configurable:	true,
  10. 		get: function()
  11. 		{
  12. 			return myProp;
  13. 		},
  14. 		set: function( v )
  15. 		{
  16. 			myProp = v+' is mo beta';
  17. 		}
  18.  
  19. 	});
  20. })();
  21.  
  22. alert( myObject.myProp );
  23. myObject.myProp = 'myValue';
  24. alert( myObject.myProp );
  25.  
  26.  
  27. /*  COULDN'T IT HAVE JUST BEEN....
  28.  
  29. 	Object.defineProperty( myObject, 'myProp', 
  30. 	{
  31. 		writable:		false,
  32. 		enumerable:		false,
  33. 		configurable:	true,
  34. 		value: 'myDefault',
  35. 		get: function()
  36. 		{
  37. 			return myProp;
  38. 		},
  39. 		set: function( v )
  40. 		{
  41. 			myProp = v+' is mo beta';
  42. 		}
  43.  
  44. 	});
  45. */

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Posted By: reelfernandes on April 11, 2011

I meant to replace 'myProp' in the getter/setter functions with 'value';

/* COULDN'T IT HAVE JUST BEEN....

Object.defineProperty( myObject, 'myProp', 
{
    writable:       false,
    enumerable:     false,
    configurable:   true,
    value: 'myDefault',
    get: function()
    {
        return value;
        //or return this.myProp;
    },
    set: function( v )
    {
        value = v+' is mo beta';
        //or this.myProp = v+'is mo beta';
    }

});

*/

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